Manley Acura 2.0L K20A2 Exhaust Valve Kit - 31.00mm Head Dia. 109.04mm O/A Length, 0.2150in Stem

If you're rebuilding the top end of your Acura RSX, Honda Civic, or other compatible 2.0L K20A2 engine, these Manley Race Series exhaust valves are a solid option. They're built from durable stainless steel, specifically the XH-426 alloy for exhaust applications, which holds up well under high temperatures. The chrome-plated stems and hard tips add to their longevity, resisting wear even with frequent use. You'll also notice the swirl-polished underhead area and fully machined combustion face; these details help optimize airflow into the cylinder, contributing to better combustion efficiency.

These valves are well-made for engines that see a lot of action, operating reliably up to 8000 RPM. They're even recommended for use in alcohol-fueled engines, which run hotter and demand more from exhaust components. The 31.00mm head diameter and 109.04mm overall length are specific dimensions to ensure they fit your K20A2 cylinder head correctly. When you're putting an engine back together, using well-built valvetrain components like these can make a noticeable difference in performance and durability.